677689593682 has 8 divisors (see below), whose sum is σ = 1076330531196. Its totient is φ = 318912749952.

The previous prime is 677689593667. The next prime is 677689593683. The reversal of 677689593682 is 286395986776.

It can be written as a sum of positive squares in 2 ways, for example, as 677031106761 + 658486921 = 822819^2 + 25661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 677689593599 and 677689593608.

It is not an unprimeable number, because it can be changed into a prime (677689593683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9966023403 + ... + 9966023470.

Almost surely, 2^677689593682 is an apocalyptic number.

677689593682 is a deficient number, since it is larger than the sum of its proper divisors (398640937514).

677689593682 is a wasteful number, since it uses less digits than its factorization.

677689593682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932046892.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 677689593682 in words is "six hundred seventy-seven billion, six hundred eighty-nine million, five hundred ninety-three thousand, six hundred eighty-two".